Lock for metal window-sashes.



P. P; SMITH.

' LOOK FOR METAL WINDOW SASHES.

APPLIOATION FILED FEB.23, 1910.

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WITNESSES.

F. F. SMITH.

LOCK FOR METAL WINDOW SASHES. APPLIOATION FILED 513.23, 1910.

Patented Dec. 27, 1910.

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llhllfED TATE FATE FEQ FRANK F. SMITH, OF NEWARK, NEW JERSEY.

LOOK FOR METAL "WINDOW-SASHES.

erases.

Application filed February 23, 1910.

' State of New Jersey, have made and invented certain new and useful improvements in Looks for Metal Window-Sashes, of which the following is a specification.

lfy invention relates to an improvement in metal window sashes, and more particularly to the fixtures or hardware for use in connection therewith, whereby to secure the sash in its closed position. When window sashes or the like are constructed of wood, it is possible, in case an error has been made in the location of the fastener or hardware, to stop or plug up the holes drilled therein and subsequently drill the wood to properly locate and fasten the hardware thereon, but in those instances wherein the sash is made of metal such readjustment of the looks or other hardware impossible, or at least impractical, in that if the holes for the retaining screws are once improperly drilled or located in the metal, it is impractical, if not impos sible, to drill or properly locate others with out marring or injuring the sash.

The object of my invention is to so con struct and assemble the several parts of the fasteners that they will be permitted of a slight adjustment, either to allow of their proper engagement with each other, or to correct the error or errors in the drilling or location of the holes for the retaining screws.

A further object of the invention is to provide against any accidental slipping or sliding of the adjustable parts on the metal sash, and with these and other ends in view, the invention consists in certain novel features of construction and combinations of parts as will be hereinafter fully described and" pointed out in the claim.

In the accompanying drawings, Figure 1 is a front view of a metal frame and window sash provided with my improved adjustable locking devices, the tilting window being shown in its closed position. Fig. 2 is a sectional view thereof taken on the line 22 of Fig. 1. Fig. 3 is a view partly in section and partly in elevation of the lock located at the upper part of the sash. Fig. 4: is a view in perspective of that portion of the upper lock secured to the window frame. Fig. 5 is a view of that portion Specification of Letters Patent.

Patented Dec. 2?, 1919.

Serial No. 545,355.

of the upper lock secured to the window frame. Fig. 6 is a similar view of the plate attached to both the window frame and the window sash. Fig. 7 is a view partly in section and partly in elevation of the lower lock. Fig. 8 is a sectional view of that portion of the lower lock secured to the window frame. Fig. 9 is a bottom plan view of that portion of the lower lock which is secured to the sash, and Fig. 10 is a perspective view showing the under side of that portion of the lower lock which is secured to the window frame.

Referring to the drawings, 12 represents a window frame made of metal and in which is pivoted at 13 the sash 14: also made of metal and carrying the light or glass 15, the several parts of the frame and sash being constructed and assembled in any desired way, as such form no part of my present invention.

In connection with metal sashes and frames is employed hardware in the'shape of locks or fasteners, usually at the top or bottom of the sash or at both places. In the drawings 1 have shown a lock both at the top and bottom of the sash, cooperating with suitable members secured to the upper and the lower ends of the window frame to retain the frame in its closed and locked position. At the upper portion of the window is located what 1 term the upper. lock, comprising two members, one secured to the window sash, which 1 term the upper sash lock, and the other secured to the window frame, which I term the upper frame lock.

At the lower end of the window is also secured a lock comprising two members, one of which is secured to the sash, and which I term the lower sash lock, and the other secured to the frame, which I term the lower frame lock, the upper and lower sash locks being connected together by a chain, in order that they may be worked or operated in unison. The upper sash lock comprises a bracket 16 formed with a plate 17 also provided with the plate 25 having a series of holes or openings 26 formed therein, by means of which it is connected to the lower look by means of the chain 27. VVith in the sash 14 is secured a reinforcing plate 28, and to the sash 14 and reinforcing plate 28 is riveted, or otherwise secured, the stationary plate 29 provided with the teeth or serrations 30, this plate being also provided with the lugs or projections 31, through which the plate is riveted to said sash and reinforcing plate. On this plate 29 fits the bracket plate 16, the teeth or serrations 20 of which engage with the teeth 30, the plate 29 fitting within the recess 19 of the plate 16, in order that the outer portions of the latter will rest fiat or flush upon the frame 14. Through the elongated openings 18 in the bracket are passed the retaining screws 32, the inner ends of these screws being tapped into the retaining plate.

Within the upper end of the frame is also riveted, or otherwise secured, a reinforcing plate 33, the plate 29 being secured to the outer side of the frame. Over this plate 29 is fitted the upper frame lock 34 provided with the hook 35 adapted to engage with the hook 24 of the lever 22, when the parts are in their locked position, as illustrated in Fig. 3. This plate 34 has its upper side re cessed, as illustrated at 36, to accommodate the plate 29, and provided with teeth or serrations 37 to engage with the teeth 30 formed on the plate 29. The ends of this plate 34 are provided with the elongated openings 38 for the reception of the retaining screws 39 which pass through the window frame and are tapped into the reinforo ing plate 33.

From the foregoing, it will be understood that in order to vertically adjust the upper sash lock, it is simply necessary to loosen the retaining screws 32, whereupon the bracket 16 may be raised or lowered, and the screws then tightened to hold the bracket in proper position. The teeth or serrations 20 formed on the bracket engaging with the teeth 30 formed on the plate 29 overcome all danger or liability of the bracket accidentally slipping or sliding on the window sash after the retaining screws have been tightened up. Furthermore, in order to horizontally adjust the upper frame lock 34, it is simply necessary to loosen up the retaining screws 39, whereupon the plate may be moved in a horizontal direction inwardly or outwardly, the retaining screws being subsequently tightened to hold it in its proper position, the teeth or serrations 37 engaging with the teeth 30 on the plate 29 securely holding the several parts in their proper position against accidental displacement.

The lower sash lock comprises a plate 40 provided with the arms 41 in which is mounted the lever 42 provided at one end with the ball or weight 43, and at its opposite end with the hook 44, this lever being connected to the lever 22 by means of the chain 27, causing the two levers 42 and 22 to be simultaneously raised or lowered. The rear portion of the plate 40 is recessed, as illustrated at 45, and provided with the teeth or serrations 46, the ends of the plate having formed therein the elongated slots 47 for the reception of the retaining screws 48, which passing through the slots 47 and through the window sash 14, are tapped into the reinforcing plate 49 secured to the inner side of the sash. To the window sash and reinforcing plate 49 is secured a plate 29, adapted to be received into the recess 45 of the plate 40, the teeth or serrations 30 of the plate 29 engaging with the corresponding teeth 46 formed on the plate 40.

To the window frame 12 is secured the reinforcing plate 50, and to the upper side of said frame is riveted, or otherwise secured, one of the plates 29. Over and upon this plate 29, formed as before described, fits the lower frame lock 51 comprising a plate formed with the recess 52 and provided with the teeth or serrations 53, the plate being also provided with an opening into which projects the hook 54; the ends of the plate are also provided with the elongated slots 55, through which the retaining screws 56 pass, said screws being tapped into the retaining plate 50. When the parts are properly assembled, the hook 54 will engage with the hook 44 formed on the lever 42, the teeth or serrations 53 engaging with the corresponding teeth 30 formed on the plate 29. When desired to adjust this lock, in order that the several hooks may engage each other and assist in locking the window in position, it is simply necessary to loosen the retaining screws 48, whereupon the plate 40 may be vertically adjusted, the screws being subsequently tightened to hold the plate in proper position. The teeth 46 engaging the teeth 30 will prevent any accidental displacement of the plate. Likewise, the lock 51 may be horizontally adjusted by loosening the retaining screws 56, whereby the plate 51 may be moved inwardly or outwardly in the direction toward or away from the plate 40. After the screws 56 have been again tightened, the serrations or teeth 53 formed on the plate 51 will overcome any liability and avoid all danger of the accidental sliding or slipping of said plate 51 on the frame.

From the foregoing, it will be understood that my invention is exceedingly simple in construction; the two members forming the upper lock, and the two members forming the lower lock, are each adjustable, so that in case the holes or openings in either the sash or the frame be not properly located, the members themselves may be slightly moved or adjusted in order to properly engage. Furthermore, by the use of serrations upon the rear side of each one of the members, and the use of a serrated plate secured either to the sash or frame, all danger or liability of accidental displacement of the respective members is overcome.

What I claim is.

The combination with a window frame, of a sash mounted therein, a lock comprising two members one of which is secured to said frame and the other to the sash, each of said members being provided at both its ends with elongated openings for the reception of retaining screws whereby the same may be adjusted with relation to said sash and frame, and each of said members being provided with serrations on its rear side, and two serrated plates one of which is secured to said sash and the other to said frame and each provided on its front face with serrations with which engage the serrations on the back of the two locking members, substantially as described.

Signed at New York, borough of Manhattan, in the county of New York and State of New York, this 18th day of February,

FRANK F. SMITH. lVitnesses:

W. R. EDSON,

A. V. lVALsH. 

